Gripper for printing-presses



A. S. KOROB.

GRIPPER'FOR PRINTING' PRESSES.

APPLlc/mon man APRA. 1919.

- l ratenasept. 21,1920.

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sereni* ortica i narran stares ALBEaT's. Kenora, or CHICAGO, rLLrNoIsL GRIPPER non .rnINTING-Pnnssns.

lessees.

To all whom t may concern 'Y Be it known that ALBERT S. Kenora, a

citizen of Russia, anda resident of Chicago,

county of Cook, and State otv Illinois, have invented certain newnand useful Improve-` mentsv in Grippers for Printing-Presses, of

which the following is a specification.

My invention relates to grippers forV printing presses, and has for its obj ect improvements in such devices. l have illustrated my invention as applied to an ordinary Gordon press, and in the accompanying drawings l have shown so much of suchpress as is necessary to an understanding of the invention. l

In the said drawings- Figure 1 is an elevation of the device shown resting against the Jface of the movable platen of a Gordon press;

Fig. 2 Vis an enlarged detail of one corner` of the device, viewed in a direction opposite to Fig. 1;

Figs. 3, 4 and 5 are enlarged sections on lines 3-3, 4-4, and 5 5, respectively, or Fig. 1;

Fig. 6 is a view in the direction 6-6 of F ig. 5; and

Fig. 7 is a section on line 7 7 of Fig. 1, but with the gage block moved to position under the gripper. A Y

in thesaid drawings, A is the platen of a Gordon press, and B is a bar which is pivoted to the platen by connections not shown because they vform no part of the present invention. The bar B has therein a slot C by means .of which the ordinary grippers are adjusted to any posit-ion on the face ot the platen A by shifting the bolts D along the slot C. So far the parts are the same as they are in the ordinary press. What l do is to remove the ordinary grippers and substitute therefor the grippers 10 and 11 with their connected parts to be hereinafter described.

rl`he new grippers are held in place by the same bolts D, so these parts need no further description.

' rlhe grippers 10 and 11 are made of angle irons which are so placed as to have the short legs of the angles projecting toward the platen A, and located on the edges farthest from the central partof the platen. rilhis relationship may be seen in Figs. 4 and 7. One object of this is to provide a vacant space so as to make it possible for the gage blocks E to be located beneath the grippers. The blocks E are small blocks which the :una Vatrial' no. 287,435.

pers are solid rectangular bars, and as lthese bars must come against the face of the Specification otLetters Patent. Patented. Sept. 21, 1.920.` y Application filed Apiri1i`4, l I i platen, gage blocks such as E must come between thegrippers. By `making my grippers 1() and11; ofangleffiron placedas shownpl can let the gage blocks come under the gr1pper,ras shown in Fig. 7; By -this means l am enabled to print a wider sheet than isV possible when plain rectangular grippers are used.

1n each of the grippers A10 and 11 I provide slots 12, and through these slots run screws 13 which connect blocks 14 and 1.5 on opposite sides oi' the long legof the angle which forms the grippers. The block 14 has a tongue which tits in the slot of the gripper as shown in Fig. 4, and the block 15 has grooves 16 and 17 as shownin Fig. v5. The Vgroove 16 is designed vto receive a wire 18, and the groove 17 is designed to receive a flat spring 19. These blocks 1 4and 15 with screw 13 are intendedto hold either a wire or a spring, as may be most appropriate or upon and to remove the paper from the typeV when the platen falls back after making an impression. In any type form of considerable size, there are blank spaces of some size between the lines of type, or spaces atV the ends ofshort lines of printing means of Vthe slots 12, screws 13 andholding blocks 14vand 15, the `lingers (either wire vor spring) may be adjusted to match these vacant spaces. rllhe lingers are Vloose pieces which vmay be of any length, and which arel clamped in position when the screws 13 are tightened. vThe number of lingersffor each gripper 10 or 11 may be ainythingfdesired..

It is Lto be observed that the clamping blocks 15 come in the vacant spaces under the grippers, and that it is in these same spaces that the gage blocks E may be placed when printing on wide sheets of paper.

I also provide a cross bar 20 which is alsoot angle iron and hasa slot 21. The ends of the bar 20 have secured thereto'pieces 22 which are secured to the grippers 10 and 11 by screws 23 and blocks 24. The, screws -23 and blocks 24 are identical with screws 13 j Y assieme and blocks 14:, and serve as means by which the bar 2O is vertically adjustable on the grippers 10 and li. Clamping blocks for fingers are adjusable along the slot 2i as previously Vdescribed for the slots l2. The bar is used only when it is desired to print large sheets of paper. For smaller sheets, the bar 2O is removed and ehe grippers l0 and ll are adjusted to desired positionsl along Jche slot C by means or the screws D.

What l claim is:

l, The combination with a gripper having a vlongitudinal slot therein, of blocks located on opposite sides of the gripper and clamped to the gripper by a screw passing through said sloJ7 one of said blocks having a groove in its face perpendicular to `the line of the slot in the gripper, and a finger secured in said groove by the clamping acrion of said screw. Y

2. The combination with a gripper havp ing a longitudinal slot` thereirn oi blocks located on opposite sides of ehe gripper,

screw extending through said slot and serving to Clamp the blocks to' the grippenone of said blocks having a plurality of ransverse grooves in the face adjacent so 'ehe gripper, said grooves being of different dl- Inensions to accommodate ingers of diiierent shapes, and fingers designed to fit said grooves and be clamped to said grippers by said screw.

ALBERT S. KOROB. 

